<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>

    <link rel="stylesheet" href="bootstrap-4.3.1-dist/css/bootstrap.min.css">
    <script src="jquery-3.4.1.min.js"></script>
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</head>
<body>

<script src="teacher.js"></script>
</body>
</html>